450 Pro Rc Helicopter Main Rotor Blade Holder
Metal main rotor holder x 2
Linkage ball A(M2.5x4) x 2(Φ4.75x13mm)
Bearing MR84ZZ x 4(Φ4xΦ8x3mm)
Socket collar screw x 2(M3x16mm)
M3 nut x 2